The Frequentis VCX-IP inter-gateway communication is based on standard protocols (the Real-time Transport Protocol [RTP] for audio and the Session Initiation Protocol [SIP] for signaling), and follows the specifications of EUROCAE Working Group 67 (Voice over IP for Air Traffic Management).

The main applications of the Frequentis VCX-IP gateway family are:

Integrated operational voice and data service networks for air traffic management, defense and maritime applications

Multi-protocol gateways

Backup systems

Implementation of contingency/business resumption concepts

Redundant power supplies and cooling/processor resources guarantee maximum availability of the VCX-IP gateway. Connectivity to two separate IP-backbone networks is supported by fast switchover of the communication links. All interface boards are hot-swappable. Migration of safety critical networks needs to be planned very delicately, in order to maintain the availability of all services.

The VCX-IP gateway supports all different migration scenarios with its fully flexible deployment of different interfaces and protocols within the gateway.